求高手帮忙人工翻译下,不胜感激!

JustasanAM-FMradioisatoolforstudentslearningaboutlocalandregionalgeography,ashortwaveradioisagoodtoolforlearningaboutworldgeography.Everycountryintheworldhasshortwaveradiobroadcaststations,andmoststationshaveprogramminginEnglish,aswellastheirnativelanguage.Beginningwith6th-gradesocialstudiescurriculum,thestudyofgeographymaybeenhancedbylisteningtointernationalshortwavebroadcasts.Studentswillhearnewsandculturalprogrammingthatwillenhancetheinformationfoundinbooks,encyclopedias,andontheInternet.Topicssuchaslatitudeandlongitude,timezones,continents,hemispheres,andthetropicsmayallbehighlightedthroughradiolisteningactivities.Writingletterstointernationalstationstogivelistenerreportsisalong-standingshortwavelisteninghobbyactivity.Thewritingassignmentcombineslisteningandlanguageartsskills.Stationsusuallyreplywithlettersorspecialpostcards,brochures,posters,keychains,andbumperstickers.Teachersmayusetheseitemstoprepareinterestingdisplaysinaclassroomlearningcenter.